CN1876256B - Battery screening system and method - Google Patents

Battery screening system and method Download PDF

Info

Publication number
CN1876256B
CN1876256B CN200510035193A CN200510035193A CN1876256B CN 1876256 B CN1876256 B CN 1876256B CN 200510035193 A CN200510035193 A CN 200510035193A CN 200510035193 A CN200510035193 A CN 200510035193A CN 1876256 B CN1876256 B CN 1876256B
Authority
CN
China
Prior art keywords
battery
voltage
screening
chip microcomputer
final voltage
Prior art date
Application number
CN200510035193A
Other languages
Chinese (zh)
Other versions
CN1876256A (en
Inventor
王林
Original Assignee
深圳市比克电池有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市比克电池有限公司 filed Critical 深圳市比克电池有限公司
Priority to CN200510035193A priority Critical patent/CN1876256B/en
Publication of CN1876256A publication Critical patent/CN1876256A/en
Application granted granted Critical
Publication of CN1876256B publication Critical patent/CN1876256B/en

Links

Abstract

The related cell screening system comprises: a computer to set work parameter contained the terminal voltage, a voltage sampling control module and a constant voltage/current module connected to ends of target cell to sample and discharge respectively, and a SCM connected to all former devices.

Description

Battery screening system and method

Technical field

The present invention relates to a kind of battery screening system and method, relate in particular to a kind of screening system and method that low-voltage battery detects that be used for.

Background technology

Along with improving constantly of people's level of cultural life, the core technology of associated electrical product is maked rapid progress, and battery has become the indispensable necessary article of modern, and it makes people use the demand of various portable electronic equipments to be achieved in live and work.

At present, in the lithium ion battery production process, after the lithium battery preliminary filling is finished, before the forming and capacity dividing, need carry out battery screening usually, the battery screening that voltage the is lower than a certain value processing of coming out to demote.

Yet, after normally adopting the artificial reading of universal meter to record voltage, existing method of screening A-battery before forming and capacity dividing carries out, promptly artificial nib with universal meter links to each other with the both positive and negative polarity of battery, universal meter shows voltage, again the numerical value of demonstration and the numerical value of requirement are compared, when the numerical value that the numeric ratio of demonstration requires is low this battery is chosen degradation and handle.Therefore, the existing low-voltage battery of this kind screening detection method efficient is lower, and hand labor intensity is big, cause being subjected to human factor influence big, False Rate is higher.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, and provide a kind of battery screening system and method, thereby solve the problem that screening technique efficient is low, hand labor intensity is big, False Rate is high that present low-voltage battery detects.

The technical solution adopted in the present invention is: a kind of battery screening system is provided, it comprises computer, single-chip microcomputer, voltage sample control module and constant flow module, wherein said computer, voltage sample control module, constant flow module are connected with single-chip microcomputer respectively, and the voltage sample control module is connected with waiting the two ends of screening battery respectively with constant flow module; Final voltage by the computer settings battery screening, described final voltage is sent to single-chip microcomputer, after single-chip microcomputer is received a mandate, constant flow module is treated the screening battery discharge, the voltage at voltage sample control module circle collection battery two ends, under the constant-current discharge pattern, the scope of described discharge current size is the 5-50 milliampere, and the scope of working time is 0.5-5 minute; To the sample final voltage of gained voltage and setting of single-chip microcomputer relatively judges whether to reach final voltage.

It also comprises indicator lamp, and it is connected with described single-chip microcomputer, is used to indicate the screened battery that goes out.

A kind of battery screening method of using above-mentioned battery screening system, it may further comprise the steps:

A) by the running parameter of computer settings battery screening, described running parameter comprises final voltage;

B) above-mentioned running parameter is sent to single-chip microcomputer;

C) after single-chip microcomputer was received a mandate, constant flow module was treated the screening battery discharge, the voltage at voltage sample control module circle collection battery two ends; Under the constant-current discharge pattern, the scope of described discharge current size is the 5-50 milliampere, and the scope of working time is 0.5-5 minute;

D) will the sample final voltage of gained voltage and above-mentioned setting relatively judges whether to reach final voltage.

When sampling gained voltage reaches described final voltage, also comprise by an indicator lamp that is connected with described single-chip microcomputer and indicate the step of screening battery.

Described running parameter also comprises working time, discharge current.

Described discharge current is the 10-20 milliampere.

The described working time is 1-3 minute.

The scope of described final voltage is the 3.7-3.9 volt.

If battery described to be screened is the box hat battery, described final voltage is 3.79 volts; If battery described to be screened is an aluminum-shell battery, described final voltage is 3.77 volts.

Beneficial effect of the present invention is: battery screening system of the present invention and method contrast the voltage of battery to be detected by computer and Single-chip Controlling constant current/constant voltage module and the collection of voltage sample control module, and can realize easily that a plurality of batteries detect simultaneously, the efficient height, hand labor intensity is low and False Rate is low.

Description of drawings

Fig. 1 is the structural representation of battery screening system of the present invention;

Fig. 2 is the schematic flow sheet of battery screening method of the present invention.

The specific embodiment

See also Fig. 1, battery screening system of the present invention comprises computer 10, single-chip microcomputer 20, voltage sample control module 30, constant current/constant voltage module 40 and indicator lamp 50.Aforementioned calculation machine 10, voltage sample control module 30, constant current/constant voltage module 40 and indicator lamp 50 are connected with single-chip microcomputer 20 respectively, and voltage sample control module 30 is connected with waiting the two ends of screening battery 60 respectively with constant current/constant voltage module 40.

See also Fig. 2, battery screening method of the present invention may further comprise the steps:

201. the user is by the running parameter of computer 10 settings battery screening system of the present invention, present embodiment comprises mode of operation (constant-current discharge or constant voltage discharge), working time, final voltage, the discharge current/voltage of setting constant current/constant voltage module 40;

202. above-mentioned parameter is sent to single-chip microcomputer 20;

203. after single-chip microcomputer 20 was received a mandate, constant current/constant voltage module 40 was treated 60 discharges of screening battery, voltage sample control module 30 circle collections wait to screen the voltage at battery 60 two ends;

The final voltage of gained voltage and above-mentioned setting relatively judges whether to reach final voltage 204. will sample, if reached final voltage, then indicator lamp 50 is lighted.

Be appreciated that, in said method, the mode of operation of constant current/constant voltage module 40 can be constant-current charge or constant-voltage charge, with the constant-current discharge is example, and its working time will be set according to the produced on-site situation, but unsuitable long, originally voltage was excessive after making at that time voltage deviation for a long time, increase False Rate, cause the A-battery ratio to increase, the pass of voltage deviation value and working time is:

Δ U=α * I*t/C, wherein α is the relevant coefficient of current density, and I is a discharge current, and t is the working time, and C is a capacity of waiting to screen battery 60;

By above-mentioned formula and the experiment as can be known, the discharge current margin size of battery screening system of the present invention and method is 5-50mA, preferred 10-20mA, if discharge current too small (<5mA), then do not reach precision prescribed, may cause results abnormity, if discharge current excessive (>50mA), it is very fast to cause voltage to descend, and will make original normal battery erroneous judgement be low-voltage battery; The discharge working time is 0.5-5min, preferred 1-3min, if the working time too short (<0.5min), can make the operative employee have little time defective battery (being low-voltage battery) is chosen, if the working time long (>5min), the voltage of battery 60 descends too much, original normal battery erroneous judgement can be low-voltage battery equally; In addition, because existing battery generally includes box hat battery and aluminum-shell battery, it exists different aspect structure and manufacturing process, cause in the standard (being final voltage) of judging low-voltage battery also different, but general range all is arranged between the 3.7-3.9 volt, if final voltage was provided with low (<3.7 volts), can make original underproof battery erroneous judgement be qualified battery, if final voltage is provided with too high (|>3.9 volts), can make original qualified battery erroneous judgement is defective battery; In the present embodiment, the box hat battery judges that the final voltage standard of low-voltage battery is 3.79 volts, and aluminum-shell battery judges that the final voltage standard of low-voltage battery is 3.77 volts.

Be appreciated that battery screening system of the present invention and method can screen a plurality of batteries to be screened simultaneously, only need computer 10 is connected simultaneously and control many cover single-chip microcomputers 20, voltage sample control module 30, constant current/constant voltage module 40 and indicator lamps 50 and can realize.

Claims (9)

1. battery screening system, it is characterized in that comprising computer, single-chip microcomputer, voltage sample control module and constant flow module, wherein said computer, voltage sample control module, constant flow module are connected with single-chip microcomputer respectively, and the voltage sample control module is connected with waiting the two ends of screening battery respectively with constant flow module; Final voltage by the computer settings battery screening, described final voltage is sent to single-chip microcomputer, after single-chip microcomputer is received a mandate, constant flow module is treated the screening battery discharge, the voltage at voltage sample control module circle collection battery two ends, under the constant-current discharge pattern, the scope of described discharge current size is the 5-50 milliampere, and the scope of working time is 0.5-5 minute; To the sample final voltage of gained voltage and setting of single-chip microcomputer relatively judges whether to reach final voltage.
2. battery screening system as claimed in claim 1 is characterized in that: it also comprises indicator lamp, and it is connected with described single-chip microcomputer, is used to indicate the screened battery that goes out.
3. battery screening method of using battery screening system as claimed in claim 1 is characterized in that may further comprise the steps:
A) by the running parameter of computer settings battery screening, described running parameter comprises final voltage;
B) above-mentioned running parameter is sent to single-chip microcomputer;
C) after single-chip microcomputer was received a mandate, constant flow module was treated the screening battery discharge, the voltage at voltage sample control module circle collection battery two ends; Under the constant-current discharge pattern, the scope of described discharge current size is the 5-50 milliampere, and the scope of working time is 0.5-5 minute;
D) will the sample final voltage of gained voltage and above-mentioned setting relatively judges whether to reach final voltage.
4. battery screening method as claimed in claim 3 is characterized in that: when sampling gained voltage reaches described final voltage, also comprise by an indicator lamp that is connected with described single-chip microcomputer and indicate the step of screening battery.
5. battery screening method as claimed in claim 3 is characterized in that: described running parameter also comprises working time, discharge current.
6. battery screening method as claimed in claim 3 is characterized in that: described discharge current is the 10-20 milliampere.
7. battery screening method as claimed in claim 3 is characterized in that: the described working time is 1-3 minute.
8. battery screening method as claimed in claim 3 is characterized in that: the scope of described final voltage is the 3.7-3.9 volt.
9. battery screening method as claimed in claim 8 is characterized in that: if battery described to be screened is the box hat battery, described final voltage is 3.79 volts; If battery described to be screened is an aluminum-shell battery, described final voltage is 3.77 volts.
CN200510035193A 2005-06-06 2005-06-06 Battery screening system and method CN1876256B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200510035193A CN1876256B (en) 2005-06-06 2005-06-06 Battery screening system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200510035193A CN1876256B (en) 2005-06-06 2005-06-06 Battery screening system and method

Publications (2)

Publication Number Publication Date
CN1876256A CN1876256A (en) 2006-12-13
CN1876256B true CN1876256B (en) 2010-05-12

Family

ID=37508915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200510035193A CN1876256B (en) 2005-06-06 2005-06-06 Battery screening system and method

Country Status (1)

Country Link
CN (1) CN1876256B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100573180C (en) * 2007-08-31 2009-12-23 中银(宁波)电池有限公司 A kind of automatic electric checking machine of dry cell
CN101286580B (en) * 2007-12-25 2010-06-02 福建省电力试验研究院 Method of making sets of valve controlling type accumulator
CN101286579B (en) * 2007-12-25 2010-06-02 福建省电力试验研究院 Method of computer matching of valve controlling type accumulator
CN102148393B (en) * 2010-02-08 2014-11-19 比克国际(天津)有限公司 Battery pack and manufacturing method thereof
CN101949971B (en) * 2010-09-09 2012-05-30 湖南科霸汽车动力电池有限责任公司 Method for selecting low-voltage storage battery
CN102059220B (en) * 2010-11-19 2013-01-09 天津力神电池股份有限公司 Integrated system for grading and sorting batteries
CN102967832A (en) * 2012-12-17 2013-03-13 天津力神电池股份有限公司 Battery testing and sorting system
CN106443475A (en) * 2016-10-21 2017-02-22 国网山东省电力公司电力科学研究院 Retired power battery dismounting-free reuse screening method based on operation big data
CN106772096A (en) * 2017-01-20 2017-05-31 国轩新能源(苏州)有限公司 The screening technique of low-voltage lithium battery
CN107024663B (en) * 2017-04-01 2019-04-05 湖南银杏数据科技有限公司 Lithium battery screening technique based on charging curve feature KPCA cluster

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363407A (en) * 1981-01-22 1982-12-14 Polaroid Corporation Method and system for testing and sorting batteries
CN2280893Y (en) * 1996-12-13 1998-05-06 殷志斌 Testing device for cell production
CN1210983A (en) * 1997-09-11 1999-03-17 电子工业部第十八研究所 Quick screening classifying and short circuit repairing device for battery
CN2358460Y (en) * 1999-03-12 2000-01-12 北京有色金属研究总院 Tester for testing battery capacity
CN1508901A (en) * 2002-12-18 2004-06-30 北京有色金属研究总院 Method for scparating secodary cell
CN2700892Y (en) * 2003-05-10 2005-05-18 比亚迪股份有限公司 Battery detection sorting instrument

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363407A (en) * 1981-01-22 1982-12-14 Polaroid Corporation Method and system for testing and sorting batteries
CN2280893Y (en) * 1996-12-13 1998-05-06 殷志斌 Testing device for cell production
CN1210983A (en) * 1997-09-11 1999-03-17 电子工业部第十八研究所 Quick screening classifying and short circuit repairing device for battery
CN2358460Y (en) * 1999-03-12 2000-01-12 北京有色金属研究总院 Tester for testing battery capacity
CN1508901A (en) * 2002-12-18 2004-06-30 北京有色金属研究总院 Method for scparating secodary cell
CN2700892Y (en) * 2003-05-10 2005-05-18 比亚迪股份有限公司 Battery detection sorting instrument

Also Published As

Publication number Publication date
CN1876256A (en) 2006-12-13

Similar Documents

Publication Publication Date Title
CN102222276B (en) State maintenance method and device for secondary equipment of power grid
CN101101323B (en) Quick detection method for lithium battery capacity with maximum limit charge voltage 4.2V
CN102520364B (en) Method utilizing battery voltage to display electric quantity
CN201348658Y (en) Battery tester
CN104617330B (en) Recognition method of micro-short circuiting of batteries
CN104953191B (en) Fortune performances of the lead-acid battery restored method moves back in a kind of transformer station
CN104345275B (en) A kind of method of dynamic evaluation battery consistency
CN104607395B (en) Lithium ion battery method for separating
CN101349738B (en) Method and apparatus for real time monitoring tandem type accumulator battery voltage
CN105068009B (en) Battery cycle life Forecasting Methodology
CN101894981A (en) Intelligent monitoring, repair and control method of lead-acid battery pack and system thereof
CN104577242B (en) A kind of batteries management system and method
CN106785178A (en) Battery modules recycle detection, screening method for group matching and device
CN102749585B (en) Multi-layer SVM (support vector machine) based storage battery on-line monitoring method
CN202309138U (en) Lithium-iron-phosphate battery-managing system for substation direct-current power-supply system
CN103412264B (en) The conforming evaluation method of cell in battery pack
CN106443475A (en) Retired power battery dismounting-free reuse screening method based on operation big data
CN103904721B (en) Cell voltage equalization device and method
CN106597305B (en) A kind of Cycle life prediction method of lithium ion battery
CN104090189B (en) A kind of equipment working state detection method and equipment working state detection means
CN107003362B (en) Test device and method for testing a battery pack control device or a battery pack
CN1248006C (en) UPS cell on-line monitoring method and device
CN105371823B (en) The real-time monitoring platform of iron tower of power transmission line gradient
CN105759147A (en) Integrated test device for battery management system of electric vehicle
CN1137181A (en) System for exchanging information in battery mailbox

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160824

Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000

Patentee after: SHENZHEN BAK BATTERY CO., LTD.

Address before: 518000 Beek Industrial Park, Kwai Chung Town, Longgang District, Guangdong, Shenzhen

Patentee before: Shenzhen Bak Battery Co., Ltd.

Effective date of registration: 20160824

Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000

Patentee after: SHENZHEN BAK BATTERY CO., LTD.

Address before: 518000 Beek Industrial Park, Kwai Chung Town, Longgang District, Guangdong, Shenzhen

Patentee before: Shenzhen Bak Battery Co., Ltd.

PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20191022

Granted publication date: 20100512